Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
210038lightly pollutedexcellent81excellent
200046lightly pollutedexcellent91excellent
190049lightly pollutedexcellent101excellent
180042lightly pollutedexcellent81excellent
170031goodexcellent61excellent
160028goodexcellent51excellent
150025goodexcellent51excellent
140024goodexcellent41excellent
130032goodexcellent51excellent
120033goodexcellent61excellent
110027goodexcellent51excellent
100032goodexcellent61excellent
090037lightly pollutedexcellent71excellent
080039lightly pollutedexcellent71excellent
070042lightly pollutedexcellent71excellent
060042lightly pollutedexcellent81excellent
050043lightly pollutedexcellent91excellent
040053lightly pollutedexcellent111excellent
030060lightly pollutedexcellent121excellent
0200108heavily pollutedgood231excellent
0100106heavily pollutedgood231excellent
0000101heavily pollutedgood231excellent
230093heavily pollutedgood221excellent
220091heavily pollutedgood191excellent